/*******************************************************************************
 * Copyright (c) 2000, 2003 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials 
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.ui.internal.dialogs;

import org.eclipse.core.resources.IProject;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.wizard.IWizard;
import org.eclipse.ui.ICapabilityInstallWizard;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.internal.WorkbenchMessages;
import org.eclipse.ui.internal.registry.Capability;

/**
 * Represents a capability install step in a multi-step
 * wizard.
 */
public class InstallCapabilityStep extends WizardStep {
	private Capability capability;
	private ICapabilityInstallWizard wizard;
	private IWorkbench workbench;
	private IProjectProvider projectProvider;
	
	/**
	 * Creates the capability install step
	 * 
	 * @param number step order number
	 * @param capability the capability to install
	 */
	public InstallCapabilityStep(int number, Capability capability, IWorkbench workbench, IProjectProvider projectProvider) {
		super(number);
		this.capability = capability;
		this.workbench = workbench;
		this.projectProvider = projectProvider;
	}

	/* (non-Javadoc)
	 * Method declared on WizardStep.
	 */
	public String getLabel() {
		return WorkbenchMessages.format("InstallCapabilityStep.label", new Object[] {capability.getName()}); //$NON-NLS-1$
	}

	/* (non-Javadoc)
	 * Method declared on WizardStep.
	 */
	public String getDetails() {
		return capability.getInstallDetails();
	}
	
	/* (non-Javadoc)
	 * Method declared on WizardStep.
	 */
	public IWizard getWizard() {
		if (wizard == null) {
			wizard = capability.getInstallWizard();
			if (wizard != null) {
				wizard.init(workbench, StructuredSelection.EMPTY, projectProvider.getProject());
				wizard.addPages();
			}
		}
		
		return wizard;
	}
	
	interface IProjectProvider {
		/**
		 * Returns the project to which the capability
		 * is to be configured against.
		 */
		public IProject getProject();
	}
}